Redwood Assign Journey Button is missing

Summary:

We have enabled the Redwood Assigned Journeys app but I have realised I do not have the Assign Journey button in the top right hand corner

Content (please ensure you mask any confidential information):

The only way I can allocate a Journey is to find it in the Explore section of the Journey App and click Assign but from documentation I have seen, I should be able to initiate the Assign Journey flow from this page

Version (include the version you are using, if applicable):

25A

Code Snippet (add any code snippets that support your topic, if applicable):